photosynthesis

Definitions

  • WordNet 3.6
    • n photosynthesis synthesis of compounds with the aid of radiant energy (especially in plants)
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Webster's Revised Unabridged Dictionary
    • n Photosynthesis (Plant Physiol) The process of constructive metabolism by which carbohydrates are formed from water vapor and the carbon dioxide of the air in the chlorophyll-containing tissues of plants exposed to the action of light. It was formerly called assimilation, but this is now commonly used as in animal physiology. The details of the process are not yet clearly known. Baeyer's theory is that the carbon dioxide is reduced to carbon monoxide, which, uniting with the hydrogen of the water in the cell, produces formaldehyde, the latter forming various sugars through polymerization. Vines suggests that the carbohydrates are secretion products of the chloroplasts, derived from decomposition of previously formed proteids. The food substances are usually quickly translocated, those that accumulate being changed to starch, which appears in the cells almost simultaneously with the sugars. The chloroplasts perform photosynthesis only in light and within a certain range of temperature, varying according to climate. This is the only way in which a plant is able to organize carbohydrates. All plants without a chlorophyll apparatus, as the fungi, must be parasitic or saprophytic.
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Century Dictionary and Cyclopedia
    • n photosynthesis A chemical combination brought about by the action of light, as in the formation of carbohydrates in living plants from the carbon di-oxid and water of the air under the influence of sunlight.
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Usage

In literature:

It has rudimentary powers of motion from its animal part, yet uses photosynthesis and stores water like a plant.
"Planet of the Damned" by Harry Harrison
Growing plants kept the air in their greenhouse fresh and breathable by photosynthesis.
"Asteroid of Fear" by Raymond Zinke Gallun
The end-product of photosynthesis is always a carbohydrate.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
The effect of temperature on photosynthesis is being explored.
"Significant Achievements in Space Bioscience 1958-1964" by National Aeronautics and Space Administration
These two are the materials for the reverse process in photosynthesis.
"Smithsonian Institution - United States National Museum - Bulletin 240" by Anonymous
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In news:

Over the years I've made the claim that the floating leaf disk assay is quite possibly the best way for students to explore how the process of photosynthesis.
Intensive Rotational grazing ( quick in & quick out ), is practiced to retain legume leaf area for continued photosynthesis and plant growth.
Field and greenhouse research shows that BASF fungicides increase net photosynthesis in corn and soybeans, leading to increased yield potential.
The Quantum Physics of Photosynthesis.
It's not a flower, but it does get its nice looks from photosynthesis.
Many students knew that plants give oxygen to the air, but Nick Ely also knew that plants use carbon dioxide in photosynthesis.
Here's a great explanation of photosynthesis complete with interactivity to keep you students engaged.
Using Photosynthesis to Create Electricity.
Cosmic explosions thousands of light-years away could shut down photosynthesis in the ocean at depths of up to 260 feet, a new study suggests.
They also look at other common, research-identified misconceptions that make it difficult for students to understand photosynthesis and to connect the photosynthetic processes in a plant cell to the plant and its surroundings.
Arnon, who added significantly to the understanding of plant photosynthesis , died on Tuesday in Berkeley, Calif He was 84 and lived in nearby Kensington.
Science's weirdest realm may be responsible for photosynthesis, our sense of smell, and even consciousness itself.
Physicists have found the strongest evidence yet of quantum effects fueling photosynthesis.
Quantum Physics Fuels Photosynthesis.
As the race to develop more affordable solar energy technologies persists, scientists continue to pursue the deep secrets of photosynthesis.
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In science:

Every population in the model can grow either by primary production (e.g. photosynthesis) or by consumption of prey (predation).
Generalized models as a universal approach to the analysis of nonlinear dynamical systems
Russell MJ, Hall AJ, Mellersh AR (2003) On the dissipation of thermal and chemical energies on the early Earth: The onsets of hydrothermal convection, chemiosmosis, genetically regulated metabolism and oxygenic photosynthesis.
Magnetism, FeS colloids, and Origins of Life
Related processes of energy (excitation) transfer are important in biological systems (e.g., photosynthesis) .
Transferring elements of a density matrix
Photosynthesis provides chemical energy for almost all life on Earth.
Complex quantum network model of energy transfer in photosynthetic complexes
Furthermore, understanding the mechanism of efficient energy transfer in natural light-harvesting systems can help develop low-cost and highly efficient manmade solar energy apparatuses, including photovoltaic devices and artificial photosynthesis.
Complex quantum network model of energy transfer in photosynthetic complexes
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